From b4f106be2d8a4eb34ce41c5306d5a4fcc37e60e3 Mon Sep 17 00:00:00 2001
From: Horst Kronstorfer <hkronsto@frequentis.com>
Date: Fri, 13 Jul 2012 03:03:40 +0000
Subject: [PATCH] dts/Makefile: Turn off some predefined macros

Add '-ansi' to DTS_CPPFLAGS to avoid unwanted expansion of dts content
that matches some predefined macros.

Example: A number of PowerPC related *.dts files in the kernel define a
property named 'linux,network-index' which (w/o '-ansi') is expanded to
'1,network-index' by the preprocessor because of '#define linux 1.'

Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
---
 dts/Makefile | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dts/Makefile b/dts/Makefile
index 50f9066115..785104e6d6 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -36,7 +36,8 @@ $(error Your architecture does not have device tree support enabled. \
 Please define CONFIG_ARCH_DEVICE_TREE))
 
 # We preprocess the device tree file provide a useful define
-DTS_CPPFLAGS := -DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
+DTS_CPPFLAGS := -ansi \
+		-DARCH_CPU_DTS=\"$(SRCTREE)/arch/$(ARCH)/dts/$(CONFIG_ARCH_DEVICE_TREE).dtsi\" \
 		-DBOARD_DTS=\"$(SRCTREE)/board/$(VENDOR)/$(BOARD)/dts/$(DEVICE_TREE).dts\"
 
 all:	$(obj).depend $(LIB)
-- 
2.39.5